A First Deposit Bonus is a promotional offer provided by online casinos and betting sites to attract new players. When a user makes their initial deposit, they receive a bonus, often in the form of extra funds or free spins, which can be used to explore the platform's games and services. This incentive not only enhances the gaming experience but also increases the chances of winning without risking too much of one's own money. However, it's essential to read the terms and conditions, as wagering requirements and restrictions may apply.